Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 9 28.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/29/2021   07:17:15   ( -68.88,-111.30) 09/29/2021   07:18:06  ( -68.90,-111.31)    2.56                51
 09/29/2021   08:07:59   (  68.76,  56.16) 09/29/2021   08:07:34  (  68.73,  56.13)    3.27                25
 09/29/2021   08:58:25   ( -67.81,-135.30) 09/29/2021   08:57:17  ( -67.90,-137.23)   81.83                68
 10/01/2021   22:43:43   (  69.72,-164.05) 10/01/2021   22:44:51  (  69.62,-162.12)   75.18                68
 10/01/2021   23:34:10   ( -68.83,   4.54) 10/01/2021   23:34:33  ( -68.85,   4.51)    2.61                23
 10/02/2021   00:24:54   (  68.71, 172.00) 10/02/2021   00:24:00  (  68.73, 172.01)    2.15                54
 10/04/2021   15:00:23   (  68.93, -47.15) 10/04/2021   15:01:28  (  68.95, -47.12)    1.97                65
 10/04/2021   15:51:04   ( -68.78, 120.37) 10/04/2021   15:50:59  ( -68.79, 120.31)    2.68                 5
 10/04/2021   16:41:42   (  68.34, -71.75) 10/04/2021   16:40:31  (  68.39, -72.53)   32.60                71
 10/07/2021   07:17:18   (  68.89,  68.68) 10/07/2021   07:17:55  (  68.87,  68.67)    1.71                37
 10/07/2021   08:08:00   ( -68.79,-123.87) 10/07/2021   08:07:25  ( -68.77,-123.82)    2.30                35
 10/09/2021   22:43:38   ( -69.43,  16.38) 10/09/2021   22:44:48  ( -69.31,  17.46)   44.61                70
 10/09/2021   23:34:13   (  68.85,-175.50) 10/09/2021   23:34:21  (  68.85,-175.48)    0.84                 8
 10/10/2021   00:24:54   ( -68.69,  -7.97) 10/10/2021   00:23:52  ( -68.70,  -8.04)    2.77                62